Yes. First select your List. (Go to Lists and click on Select List.) Then go to Reports, click on List Activity Summary and choose the date range for which you’d like the report. In the report that follows, if there were any Subscriber Updates (subscr update) in the date range you selected, the Activity Column will have a row for Subscr Update with a number next to it in the Volume column. This is the total number of subscriber updates that took place for the selected date range.